I need to analyze correlations between columns in this dataset. Let me start by understanding the structure better and then compute correlations for numeric columns and relationships for categorical ones. {"action": "tool_call", "reasoning": "First, I'll get an overview of all tables to understand the dataset structure and identify which tables contain the most relevant data for correlation analysis.", "tool": "query_sql", "args": {"sql": "SELECT table_name, row_count, column_count FROM analytics.table_overview ORDER BY row_count DESC LIMIT 20", "purpose": "Get overview of largest tables to identify best candidates for correlation analysis", "source": "raw"}}